User blog comment:Hayds126/Let’s Go is Real/@comment-35002745-20180530141606/@comment-35468293-20180601234426

First, Fire Red and Leaf Green. Not exactly the best option as it was a GBA game nobody probably plays anymore.

Second, HGSS. More modern, more loved, and amazing. Includes Kanto region, a DS game. It's the most recent one and it's like Platinum.